Answer: Joint training
Step-by-step explanation: In simple words, joint training refers to the process in which an organisation or an entity tries to persuade and influence the behavior of their staff by making teaching them any specific kind of technical skill.
Such kinds of training are very common in defense forces such as military and police force, where team work and relative trust is of high importance. But these kinds of training are also used by other organizations in cases where the number of candidates is large and it is not possible to train each of them individually.